Main timeline

[Princess Luna]

Aprox 200 BNMM-Corona and Galaxia establish Equestria as a planet and form the native species.

26 BNMM-Corona Falls pregnant with Celestia.

25 BNMM- Celestia is born.

19 BNMM- Sun is made for Celestia.

14 BNMM-Luna is born.

8 BNMM- Moon is created for Luna. Her father begins teaching her how to make constellations.

2 BNMM- A preteen artist, Luna begins to feel unappreciated.

1 BNMM- Starts developing major negative feelings toward mortals.

0 DCSR- Nightmare Moon is created from Luna’s major negative feelings. NMM and Celestia battle it out, the battle ending with NMM being sealed in the moon by the elements of harmony.

0-999 DCSR- Celestia rules over Equestria, and controls both the sun and the moon in her sister’s place. It is assumed that most everything is peaceful during this time.

0 NMMR- Nightmare Moon returns, and is defeated by the mane six, with the elements of Harmony. Luna goes back to normal(For the most part), and begins ruling alongside her sister, although, maybe not helping all that much with the government stuff...

1 ANMMR- The first Gala for the mane six...Turns out to not be as great as they expected.

1.5 ANMMR- Galaxiour and Corona return from their long vacation. A feast is held in their honor.

Alright, so, mind creating your own individual timelines for your characters in the main timeline, please?

[thepondfamily]

Sometime far in the future, Human Universe: The Doctor meets River Song, who already knows him and is married to him in his future.
1990's, A.D./C.E., Human Universe: Amy Pond meets The Doctor.
2008 A.D./C.E., Human Universe: The Doctor Returns, and Rory meets the Doctor.
2010 A.D./C.E., Human Universe: Amy Pond and Rory Williams, now engaged, start traveling with the Doctor. The Doctor runs into River Song again. The universe is ended by the TARDIS blowing up, and the Doctor starts a second big bang, fixing everything. Rory and Amy get married.
2011 A.D./C.E., Human universe: The trio of The Doctor, Amy, and Rory fight more aliens, and Melody Pond is born. MP is kidnapped, The Doctor looks for her, and River Song reveals herself as the future version of Melody (Melody/Song, River/Pond, see?). Rory is turned into a Pony and brought here against his will, River and Amy come looking for him, he buys a house, it is destroyed by a strange meteor, Amy and Rory move in the Pinkie Pie's AU self, Pinkamena Diane Pie. That's everything major.

[masterweaver]

...huh.

Well, now to rework the character timelines. *Bumps back Fireflare and Flapper Jack's birthdays*

[Nightmare Moon]

Sometime a little before 0 DCSR - Everypony forgets Luna's birthday. Nightmare Moon is born within Luna.

0 DCSR - Nightmare Moon becomes powerful enough to usurp Luna's conciousness. She tries to bring about eternal night, battles with Celestia, and then (along with Luna) is banished to the moon.

0-999 DCSR - Nightmare Moon continues to grow within Luna's mind during their imprisonment, becomes strong enough to survive on her own.

0 NMMR - The stars, wanting Luna back, free Nightmare Moon from her prison. She briefly restores her eternal night, but is defeated by the mane six and separated from Luna by the elements of harmony.

0 NMMR-1 ANMMR - Nightmare Moon moves through Equestria invisibly, spying on those that defeated her.

1.1 ANMMR - Nightmare Moon learns to control machines despite being incorporeal. Starts posting incoherent rantings on the ponynet.

1.3 ANMMR - Nightmare Moon tricks two-year-old filly Sunny Days into getting stuck in a bog. Nightmare Moon (with the help of Arcel) steals 'legally acquires the rights to' a coma patient and uses her as a new body. Typewryter uses magic to trick Nightmare Moon into swearing an oath never to intentionally harm him or Luna.

1.4 ANMMR - Nightmare Moon establishes a false mortal identity as Nightsky Melody, a resident of Ponyville.

1.5 ANMMR - Return of Galaxiour. Nightmare Moon sneaks a parasprite into the celebration

[Arcel/Mythic Swirl]

Sure... she "stole" the body, not like somepony went through the trouble of legaly obtaining it and moving it to a private medical facility....

[Nightmare Moon]

Fixed